diff --git a/spack.yaml b/spack.yaml
index 769b1475b989623b2fea4220eed0a81025417226..b3e6a1540a9f0106eb4a8bcb175b9e540d4b6bd9 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -22,7 +22,6 @@ spack:
     - imagemagick@7.0.8-7
     - madx@5.08.01
     - mesa@22.0.2 +glx -llvm +opengl +opengles +osmesa
-    - mesa-demos
     - nlohmann-json@3.10.5
     - opencascade@7.6.0
     - pkg-config@0.29.2